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Rivo Phantom PZ4 vs Tecno Spark 40

2G Network SIM1: 850 / 900/ 1800/ 1900 SIM2: 850 / 900/ 1800/ 1900 SIM1: GSM 850 / 900 / 1800 / 1900SIM2: GSM 850 / 900 / 1800 / 1900  Best smartphone
3G Network WCDMA / 2100 HSDPA 900 / 2100  
4G Network LTE LTE  
Dimensions 144 x 72 x 10mm 165.6 x 77 x 7.7 mm  
Sim Type Nano-SIM + Nano-SIM  
Weight N/a N/A  
Display Type FWVGA Display IPS LCD Capacitive Touchscreen   120Hz  
Display Size 5.0 Inches, 480 x 854 Pixels' 6.67 Inches   1080 x 2460 Pixels (~403 PPI)  
Memory 8GB built-in 128/256GB Built-in, 4/6/8GB RAM  
Card slot microSD card (Support up to 64GB) microSDXC  
RAM 1GB RAM
GPRS Yes
WLAN WLAN (Wi-Fi 802.11 b/g/n Wi-Fi 802.11 a/b/g/n/ac, dual-band  
BlueTooth Bluetooth V4.0 with A2DP v5.4 with A2DP, LE  
USB USB (microUSB v2.0) USB Type-C  
NFC No  
GPS Yes + A-GPS support  
Main Camera 8 MP, LED Flash, Auto Focus, Video, Single Camera: 50 MP, (wide), PDAF Auxiliary lens, Dual LED Flash   Panorama, Video (1440p@30fps, 1080p@30fps)  
Front Camera 2 MP 8 MP, (wide), Dual LED Flash, Video (1080p@30fps)  
OS Andriod 6.0 Marshmallow Android 15 OS  
Chipset Mediatek Helio G81 (12 nm)  
Processor 1.3 GHz Quad-Core, MTK 6735M Octa-core (2 x 2.0 GHz Cortex-A75 + 6x 1.8 GHz Cortex-A55)  
GPU Mali-G52 MC2  
Sensors Accelerometer, proximity, compass Accelerometer, Compass, Fingerprint (side-mounted), Proximity  
Browser HTML5 HTML5  
Sound FM Radio, ecording, 3.5mm audio jack, MP4/WMV/H.264/H.263 player, MP3/AAC/WMA/WAV player, Google Talk, Games (built-in + downloadable) 3.5mm Audio Jack, 24-bit/192kHz Hi-Res audio, Speaker Phone  
Colors Various Ink Black, Titanium Grey, Veil White, Mirage Blue  
Battery Talk-time up to 5 hrs 2500 mAh 5200 mAh   - Fast battery 45W wired, 55 min to 100%  
StandBy Time Stand-by up to 10 days
TalkTime Talk-time up to 5 hrs 2500 mAh
Misc Dual Sim, Dual Stand-by, Browser Internet, Games, Auto Call Recording, Call and SMS Block, Mobile Tracker, World ClockGoogle Search, Maps, Gmail, Youtube, Calendar, Speakerphone SMS(threaded view), MMS, Email, Push Mail, IM   IP64 dust tight and water resistant (water splashes), Drop resistant up to 1.5m